Overload Clutch; Operation - DeWalt D25052 Original Instructions Manual

Reversing Lever (fi g. 4)
The reversing lever (g) is used to reverse the rotary
hammer for backing out fasteners or jammed bits in
the drill-only function.
CAUTION: When reversing to clear
jammed bits, be ready for strong
reactive torque.
To reverse the rotary hammer, turn it off and align
the reversing lever (g) with the yellow arrow pointing
backward.
To position the lever for forward operation, turn the
rotary hammer off and align the reversing lever (g)
with the yellow arrow pointing forward.
Mode Selection Collar (fi g. 1, 5)
NOTICE: Tool must come to a
complete stop before activating the
mode selector button or damage to the
tool may result.
To switch the tool from the drilling mode to the
hammering mode (or vice-versa) rotate the collar (f)
to the applicable symbol.
Turn the collar (f) to the drill bit symbol for drilling or
to the hammer symbol for hammerdrilling.
NOTE: The arrow on the mode selection collar
MUST be aligned with one of the symbols at all
times. There are no operable positions between the
positions.
ROTARY DRILLING MODE
Use rotary drilling mode for wood, metal,
and plastics.
HAMMERDRILL MODE
Use this mode for masonry drilling.
Depth Rod (fi g. 6)
TO ADJUST THE DEPTH ROD
1. Push in and hold the depth rod release
button (h) on the side handle.
2. Move the depth rod (d) so the distance between
the end of the rod and the end of the bit equals
the desired drilling depth.
3. Release the button to lock rod into position.
When drilling with the depth rod, stop when end
of rod reaches surface of material.

OPERATION

Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
WARNING: To reduce the risk
of serious personal injury, turn
tool off and disconnect tool from
power source before making any
adjustments or removing/installing
attachments or accessories.
Trigger Switch (fi g. 1)
To start the rotary hammer, depress the trigger
switch (a). To stop rotary hammer, release the
switch.
NOTE: Use lower speeds for starting holes without
a centerpunch, drilling in metal, plastics or ceramics.
Higher speeds are better for drilling in masonry for
maximum efficiency.
VARIABLE SPEED
The variable speed trigger switch (a) permits speed
control. The farther the trigger switch is depressed,
the higher the speed of the drill.
Proper Hand Position (fi g. 1, 7)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the
side handle (c), with the other hand on the main
handle (b).

Overload Clutch

If the drill bit becomes jammed or caught, the drive
to the drill spindle is interrupted by the overload
clutch. Because of the forces that occur as a result,
always hold the machine securely with both hands
and take a firm stance.
Drilling Tools
The machine is intended for hammerdrilling in
concrete, brick and stone. It is also suitable for
drilling without impact in wood, metal, ceramic and
plastic.
Drilling (fi g. 1, 5)
WARNING: To reduce the risk
of serious personal injury, turn
tool off and disconnect tool from
power source before making any
adjustments or removing/installing
attachments or accessories.
EN G LI SH
7